and democratic senator dianne feinstein proposes a federal ban on assault rifles. but does she have the votes to get it passed or is she wasting her time? let's go "outfront." good evening, everyone. i'm erin burnett. and "outfront" tonight, gone too far. today, democratic senator dianne feinstein proposed a new federal ban on some assault rifles and semi-automatics. now, she certainly got it right visually, when she was standing there today, she had a backdrop of some of the guns she wants to ban, and it included, and very prominently, a bushmaster, like the one used in the newtown massacre. there was also a circle of uniformed law enforcement officers and gun violence victims. there was rolled out with pomp and circumstance, but did she get the message right? she, herself, admits that getting this passed will not be easy. >> if anyone asks today, can you win this? the answer is, we don't know. it's so uphill. >> uphill is right. the fact of the matter is that gun violence from assault weapons is estimated the to be between 2% and 8% of the gun crime in this count